I am using WebIDE. This is a Firefox add-on that lets you connect Firefox Developer Tools to a number of other browsers, including Firefox for Android, Chrome on Android, and Safari on iOS. You will need Firefox 37+ or the developer version. You can find the instructions here (MDN) and here (Details)
Note:
It does not work (at least for me) with the iOS version for latters (it worked with iOS 8). It connects, but it does not see the pages you are viewing on your device.
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